28133651755 has 16 divisors (see below), whose sum is σ = 37016473824. Its totient is φ = 20356967680.

The previous prime is 28133651729. The next prime is 28133651771. The reversal of 28133651755 is 55715633182.

It is a de Polignac number, because none of the positive numbers 2^k-28133651755 is a prime.

It is a super-2 number, since 2×28133651755² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287442 + ... + 1309111.

It is an arithmetic number, because the mean of its divisors is an integer number (2313529614).

Almost surely, 2^28133651755 is an apocalyptic number.

28133651755 is a deficient number, since it is larger than the sum of its proper divisors (8882822069).

28133651755 is a wasteful number, since it uses less digits than its factorization.

28133651755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596766.

The product of its digits is 756000, while the sum is 46.

The spelling of 28133651755 in words is "twenty-eight billion, one hundred thirty-three million, six hundred fifty-one thousand, seven hundred fifty-five".